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Samsung Galaxy Watch Ultra
Get the first Galaxy Watch Ultra only at a clear discount: Ultra2 brings an 800mAh battery, a 5,000-nit screen claim, Wear OS 7 and dive certification.
In short
Get the first Galaxy Watch Ultra only at a clear discount: Ultra2 brings an 800mAh battery, a 5,000-nit screen claim, Wear OS 7 and dive certification. The 2024 Ultra works with Android 11 or newer, not iPhones, and has a 47mm titanium case, a Quick Button and an 86-decibel siren. It's rated 10 ATM but not for diving, and Samsung quotes up to 100 hours in Power Saving.
Product images
Samsung Galaxy Watch Ultra, from its Amazon listing.
Credit: Amazon.com (Associates Program). Amazon listing
Product image from the Amazon listing.
Who it is for
- Shoppers who find it at a clear discount and want the Ultra hardware: the 47mm cushion-shaped titanium case, the Quick Button and the 86-decibel Emergency Siren.
- Galaxy Watch7 owners who want a tougher watch: 10 ATM, IP68 and MIL-STD-810H in a 47mm case, instead of Watch7's 5 ATM in 40mm or 44mm.
- Triathletes and cyclists. It has a multi-sport tile for triathlons, FTP cycling metrics with a power meter, and Personalized HR Zones.
Who should skip it
- iPhone users. The 2024 Ultra won't pair with one; an Apple Watch Ultra is the rugged pick for iPhone.
- Divers. Samsung says it isn't for diving or high-pressure water sports, and it has no EN13319 certification; Ultra2 does.
- Anyone who wants the newer battery and software. Ultra2 has 800mAh against 590mAh here, 64GB against 32GB, and Wear OS 7 against Wear OS 5.
- Anyone who wants a smaller or slimmer watch. It's 47mm only and 12.1mm thick; Ultra2 is thinner, and Watch7 comes in 40mm and 44mm.
What sets it apart
- The original Ultra design: a 47mm cushion-shaped titanium case, the Dynamic Lug System and a Quick Button for starting and controlling workouts.
- An Emergency Siren that Samsung says reaches 86 decibels and can be heard up to 180 meters away.
- 10 ATM, IP68 and MIL-STD-810H, rated for −20°C to 55°C on the wrist and altitudes from −500m to 9,000m.
- Up to 100 hours in Power Saving or 48 hours in Exercise Power Saving, from a 590mAh battery.
Caveats
- Samsung gives no everyday battery figure for this model, only the two power-saving ratings.
- Only the front and back cover areas are Grade 4 titanium; the rest of the frame is plastic and Grade 2 titanium.
- ECG works in select markets and isn't for people with known arrhythmias other than AFib, blood-pressure readings need cuff calibration, and none of the health features is a diagnosis.
Key specs
In the same order on every watch page, so you can compare models.
| Spec | Value | Source and notes |
|---|---|---|
| Display size | 47mm case; 1.5-inch (37.3mm) active area | Samsung Newsroom Singapore |
| Display type | Super AMOLED under sapphire crystal; full-color Always On Display | Samsung Newsroom Singapore |
| Display resolution | 480 × 480 px | Samsung Newsroom SingaporeUltra2 is 498 × 498. |
| Peak brightness | Up to 3,000 nits | Samsung Newsroom SingaporeSamsung's rating. Ultra2 claims 5,000 nits. |
| Always-On display | Yes; full-color Always On Display | Samsung Newsroom Singapore |
| Case size(s) | 47mm only | Samsung Newsroom Singapore |
| Case material | Grade 4 titanium on the front and back cover areas; the rest of the frame is plastic and Grade 2 titanium (Samsung footnote 4) | Samsung Newsroom Singapore, footnote 4 |
| Case dimensions | 47.1 × 47.4 × 12.1mm | Samsung Newsroom Singapore |
| Weight | 60.5 g | Samsung Newsroom Singapore |
| Finishes | Titanium Silver, Titanium Gray, Titanium White | Samsung Newsroom Singapore |
| Chip / processor | Exynos W1000 (5-core, 3nm) | Samsung Newsroom SingaporeShared with Galaxy Watch7. Ultra2 uses the Snapdragon Wear Elite. |
| On-device storage | 2GB memory + 32GB storage | Samsung Newsroom Singapore |
| Battery, normal use | 590 mAh (typical capacity); everyday battery life not published | Samsung Newsroom Singapore; samsung.com USUltra2's 60-hour always-on rating is for the newer watch. |
| Battery, low-power mode | Up to 100 hours in Power Saving | Samsung Newsroom Singapore |
| Battery, GPS workouts | Up to 48 hours in Exercise Power Saving | Samsung Newsroom SingaporeSamsung's long-workout mode; it gives no standard GPS figure. |
| Charging | Fast Charging (WPC wireless); no charge times published. Samsung's lab test (footnote 37) used the EP-OR900 cable and a 25W adapter, sold separately | Samsung Newsroom Singapore, footnote 37 |
| Water resistance | 10 ATM (ISO 22810: 10 minutes at 100m in Samsung's lab) and IP68; fine for shallow-water swimming, not for diving or high-pressure water, and resistance can diminish | Samsung Newsroom Singapore, footnotes 5 and 41 |
| GNSS / GPS | GPS (L1+L5), GLONASS, BeiDou, Galileo | Samsung Newsroom SingaporeSamsung says accuracy varies and an internet connection is needed; LTE models can use GPS without a paired phone, others need Bluetooth to the phone. |
| Cellular | LTE on LTE models only (plan required) | Samsung Newsroom Singapore |
| Heart rate | Samsung BioActive Sensor (optical heart rate, electrical heart signal and BIA); Personalized HR Zone | Samsung Newsroom SingaporeFor wellness use; not a medical device. |
| Blood oxygen (SpO2) | Measured through the optical BioActive sensor; no separate SpO2 app listed | Samsung Newsroom Singapore |
| Temperature sensing | Temperature sensor, also used for cycle tracking | Samsung Newsroom Singapore |
| ECG | ECG through the electrical heart sensor in select markets; not for people with known arrhythmias other than AFib, and not a diagnosis (Samsung footnote 22) | Samsung Newsroom Singapore |
| Sleep tracking | Samsung Health sleep analysis and Sleep Score, shared with Watch7; wellness only, not a diagnosis of sleep disorders | Samsung Newsroom Singapore |
| Workout types | Multi-sport tile for triathlon; FTP cycling metrics (power meter sold separately); Personalized HR Zone. Samsung's 100+ workouts figure is quoted for Watch7 | Samsung Newsroom Singapore |
| Other sensors | BioActive (optical, electrical, BIA); temperature; accelerometer; barometer; gyroscope; geomagnetic; light | Samsung Newsroom Singapore |
| Durability / ingress | 10 ATM; IP68; MIL-STD-810H; built for ocean swimming, Samsung says. On-wrist −20°C to 55°C; altitude −500m to 9,000m. No EN13319 or IP69K rating on the 2024 model | Samsung Newsroom Singapore |
| Safety / incident alerts | Emergency Siren, up to 86 dB and audible up to 180 m, Samsung says. Fall detection isn't listed for this model, as it is for Ultra2 | Samsung Newsroom Singapore |
| Operating system | Wear OS 5 powered by Samsung; One UI 6 Watch | Samsung Newsroom SingaporeUltra2 runs Wear OS 7 with One UI 9 Watch. |
| Phone compatibility | Android 11 or higher with more than 1.5GB of memory; not Android Go edition or phones without the Google Play Store | Samsung Newsroom Singapore |
| Wireless (Wi-Fi / Bluetooth) | Bluetooth 5.3; Wi-Fi 2.4 + 5GHz; NFC | Samsung Newsroom Singapore |
| NFC / contactless payments | NFC; Samsung Wallet where available | Samsung Newsroom Singapore |
| Band / strap system | Dynamic Lug System, made for the Ultra; not Watch7's standard lugs | Samsung Newsroom Singapore |
| US price | From $649.99 before trade-in at samsung.com (US), 19 September 2026 | samsung.com US Galaxy Watch Ultra pageSamsung's own store price, not a launch price. |
| Price band | Flagship adventure watch ($600–$700 US) | Based on Samsung's $649.99 US price |
| Announced | Galaxy Unpacked, July 2024, alongside Galaxy Watch7 | Samsung Newsroom Singapore |
| Availability | Pre-order from 10 July 2024 (9pm, Singapore); on sale in Singapore from 24 July 2024. Samsung's US store still lists it alongside Ultra2 | Samsung Newsroom Singapore; samsung.com US |
Samsung Galaxy Watch Ultra extras
Specs only this model has.
| Spec | Value | Source and notes |
|---|---|---|
| Size | 47mm only; Watch7, announced alongside it, comes in 40mm and 44mm | Samsung Newsroom Singapore |
| Quick Button | Physical button that starts and controls workouts and can be set to other functions | Samsung Newsroom Singapore |
| Emergency Siren | Up to 86 dB, heard up to 180 m (Samsung's claim; varies with surroundings and battery) | Samsung Newsroom Singapore, footnote 9 |
| Night Mode watch faces | Ultra watch faces that switch to Night Mode automatically | Samsung Newsroom Singapore |
| AGEs Index | AGEs Index monitoring on Galaxy Watch7 and Galaxy Watch Ultra; wellness only, with a photosensitivity warning | Samsung Newsroom Singapore, footnote 25 |
| EN13319 dive certification | No; Samsung says it isn't for diving. Ultra2 is certified to EN13319 | Samsung Newsroom Singapore; Samsung Galaxy Watch Ultra2 launch post |
| Versus Galaxy Watch Ultra2 | Ultra: 590 mAh, 32GB, Exynos W1000, Wear OS 5, 480 × 480, 3,000 nits, 12.1mm, 60.5 g, Android 11. Ultra2: 800 mAh, 64GB, Snapdragon Wear Elite, Wear OS 7, 498 × 498, 5,000-nit claim, thinner, Android 13 | Samsung Newsroom Singapore; Samsung Galaxy Watch Ultra2 launch post |
What Ultra2 changed
| Spec | Galaxy Watch Ultra (2024) | Galaxy Watch Ultra2 |
|---|---|---|
| Battery | 590mAh | 800mAh |
| Everyday battery rating | None given | Up to 60 hours, always-on display |
| Storage | 32GB | 64GB |
| Chip | Exynos W1000 | Snapdragon Wear Elite |
| Software | Wear OS 5, One UI 6 Watch | Wear OS 7, One UI 9 Watch |
| Screen | 480 × 480, 3,000 nits | 498 × 498, 5,000-nit claim |
| Thickness and weight | 12.1mm, 60.5 g | Thinner, 61.5 g |
| Water and toughness | 10 ATM, IP68, 810H; not for diving | EN13319 dive certification |
| Works with | Android 11 or newer | Android 13 or newer |
Ultra2 changed most of what’s inside and added the dive certification the first Ultra never had. The 2024 model still has the titanium cushion case, the Quick Button and the siren, so it’s worth a look only at a price well below Ultra2’s. The Galaxy Watch Ultra2 guide covers the newer watch.
Screen
The 1.5-inch Super AMOLED is 480 × 480 pixels under sapphire, with a full-color always-on mode and a 3,000-nit peak. The Ultra watch faces switch to Night Mode automatically.
Battery and charging
| Mode | Galaxy Watch Ultra |
|---|---|
| Battery capacity | 590mAh (typical) |
| Everyday use | Not published |
| Power Saving | Up to 100 hours |
| Exercise Power Saving | Up to 48 hours |
| Charging | Fast Charging, wireless (WPC) |
Exercise Power Saving is Samsung’s long-workout mode, and it’s the closest thing to a GPS battery figure Samsung gives. Its charging tests used the EP-OR900 cable and a 25W adapter, which is sold separately, with no charge times quoted.
Water and toughness
It’s rated 10 ATM and IP68 and tested to MIL-STD-810H, and Samsung says it’s built for ocean swimming. It isn’t for diving or high-pressure water sports, though, and water resistance can wear off over time. Samsung rates it for −20°C to 55°C on the wrist and altitudes from −500m to 9,000m.
The Ultra extras are the Quick Button, which starts and controls workouts, the Emergency Siren, and the Dynamic Lug System for its own bands.
Health and workouts
The BioActive Sensor combines optical heart rate, an electrical heart signal and BIA, alongside a temperature sensor that also feeds cycle tracking. ECG works in select markets. Samsung Health adds sleep analysis with a Sleep Score, and the Ultra shares the AGEs Index with Watch7.
For training there’s a multi-sport tile for triathlon, FTP cycling metrics when you pair a power meter, and Personalized HR Zones. Dual-frequency L1 and L5 GPS works with GLONASS, BeiDou and Galileo; LTE models can track without the phone, while Bluetooth models need it nearby.
Software and connectivity
It launched on Wear OS 5 with One UI 6 Watch, running on the Exynos W1000 with 2GB of memory and 32GB of storage. It has Bluetooth 5.3, dual-band Wi-Fi and NFC for Samsung Wallet, and LTE models need a carrier plan.
Ultra or Watch7?
Galaxy Watch7 launched alongside it on the same Exynos W1000, in 40mm and 44mm with 300mAh and 425mAh batteries and 5 ATM water resistance. Samsung pitched dual-frequency GPS on Watch7 too. Pick the Ultra for the titanium case and the 10 ATM rating.
Price
Samsung’s US store still listed the first Galaxy Watch Ultra from $649.99 before trade-in on 19 September 2026. Trade-in offers change what you pay, and prices on a 2024 watch move, so check before you buy.
Sources
- Amazon product listing — accessed 2026-09-20
- Samsung Newsroom Singapore — Galaxy Watch Ultra and Galaxy Watch7 launch, with specs — accessed 2026-09-19
- Samsung US — Galaxy Watch Ultra product page (590 mAh, $649.99) — accessed 2026-09-19
Frequently asked questions
Should I buy the first Galaxy Watch Ultra or Ultra2?
Ultra2, unless the first Ultra is much cheaper. Ultra2 has an 800mAh battery against 590mAh, 64GB against 32GB, Wear OS 7 against Wear OS 5, a 498 × 498 screen with a 5,000-nit claim against 480 × 480 and 3,000 nits, and EN13319 dive certification.
Does the first Galaxy Watch Ultra work with an iPhone?
No. Samsung requires Android 11 or higher with more than 1.5GB of memory and the Google Play Store, so Android Go edition phones are out too. iPhone owners should look at an Apple Watch Ultra.
Can you dive with the first Galaxy Watch Ultra?
No. It's rated 10 ATM and IP68, but Samsung says it isn't for diving or high-pressure water sports, and it has no EN13319 certification. Shallow-water swimming is fine.
How long does the first Galaxy Watch Ultra's battery last?
Samsung rates it for up to 100 hours in Power Saving and up to 48 hours in Exercise Power Saving, from a 590mAh battery. The 60-hour always-on rating you may see belongs to Ultra2.
Does the first Galaxy Watch Ultra have a siren?
Yes. The Emergency Siren reaches up to 86 decibels and can be heard up to 180 meters away, Samsung says, though that varies with your surroundings and the battery level.
Official product page: Samsung Galaxy Watch Ultra. Tech specs: Samsung Galaxy Watch Ultra specs.